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  • ENERGY PRODUCTION AND CONVERSION  (321)
  • 2015-2019
  • 1995-1999
  • 1985-1989
  • 1975-1979  (321)
  • 1975  (321)
  • 1
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    The long term energy problem and aeronautics (1975)
    In:  CASI
    Details
    Publication Date: 2006-01-11
    Description: The projected increase in energy consumption by transportation in general and civil aviation in particular is directly opposed to the dwindling supplies of natural petroleum crude oil currently used to produce aircraft fuels. This fact dictates the need to develop even more energy conservative aircraft and propulsion systems than are currently available and to explore the potential of alternative fuels to replace the current petroleum derived hydrocarbons. Advances in technology are described in the areas of improved component efficiency, aircraft and engine integration, control systems, and advanced lightweight materials that are needed to maximize performance and minimize fuel usage. Also, improved turbofan and unconventional engine cycles which can provide significant fuel usage reductions are described. These advancements must be accomplished within expected environmental constraints such as noise and pollution limits. Alternative fuels derived from oil shale and coal are described, and the possible technological advancements needed to use these fuels in aircraft engines are discussed and evaluated with relation to potential differences in fuel characteristics.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA/Univ. Conf. on Aeron.; p 183-210
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Citizen's actions (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The role played by individual citizens as consumers of energy was examined, with emphasis on studying ways in which their action could result in energy conservation. It was shown that there are ways that energy can be conserved in this way, with citizens acting either individually or in groups. The potential savings are significant, but the actual savings may be quite small. The citizens need to be motivated to save and to believe in a conservation ethic; developing such an ethic is difficult, and perhaps not responsive to the shotgun approach now being attempted. The true course of action may be to synthesize new societal structures that provide the maximum evolution of culture within the limitation of scarce energy resources.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: ECASTAR: Energy Conserv.; 16 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Input-output analysis of some sector actions (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Selected energy conservation actions previously discussed in depth but separately in the areas of the energy industry, the industry sector, the transportation sector, and the residential and commercial sector, were brought together and assessed as a group. Particular emphasis was devoted to identifying secondary or indirect impacts and multiple interactions. Preliminary results obtained from the ECASTAR energy input-output model suggest that the impacts of energy conservation actions can be grossly misrepresented if secondary impacts are not included in the assessment. A methodology which stresses the importance of secondary and multiple interactions permeates the underlying philosophy of this discussion.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: ECASTAR: Energy Conserv. 16p (SEE N76-21686 12-44)
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    NASA TECHNICAL REPORTS
  • 4
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    Future US energy demands based upon traditional consumption patterns lead to requirements which significantly exceed domestic supply (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Energy consumption in the United States has risen in response to both increasing population and to increasing levels of affluence. Depletion of domestic energy reserves requires consumption modulation, production of fossil fuels, more efficient conversion techniques, and large scale transitions to non-fossile fuel energy sources. Widening disparity between the wealthy and poor nations of the world contributes to trends that increase the likelihood of group action by the lesser developed countries to achieve political and economic goals. The formation of anticartel cartels is envisioned.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: The Future Environment; 39 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Hydrogen utilization and alternatives (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The historical uses of hydrogen are described along with potential new uses which could develop as a result of the diminishing supply of conventional fossil fuels such as natural gas. A perspective view of hydrogen, both as a chemical feedstock and as a fuel, is necessary to understand its relationship to the overall national energy projections. These projections, which show energy usage in terms of use sectors, forms of energy, and sources of energy, do not specifically identify hydrogen as a component of the energy system. By superimposing the traditional roles upon the new opportunities for hydrogen on the energy projections, the role of hydrogen and future projections is developed within the context of the national energy projections. Use, supply, and other factors affecting application are interrelated and are discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Hydrogen Tomorrow; 47 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Production cost methods and data (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The general gas cost equation for utility financing is presented. Modifications and assumptions made in order to apply the cost equation to hydrogen production are described. Cost data are given for various methods of hydrogen production. The cost matrix procedure is briefly discussed.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Hydrogen Tomorrow; 10 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Factors affecting the broadened use of hydrogen (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The future role of hydrogen is considered. Specific factors discussed include: storage, transmission, and distribution problems; materials compatibility and safety; environmental and social implications of increased hydrogen usage; and the economics related to expanding hydrogen use.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Hydrogen Tomorrow; 21 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Supply options (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: The use of captive hydrogen (produced and consumed on site) and merchant hydrogen (externally supplied) is considered. A low-merchant-captive ratio market and a high-merchant-captive ratio market are described and compared.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Hydrogen Tomorrow; 8 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Economics (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Tables covering the selling price of hydrogen as a function of each process temperature studied are presented. Estimated selling price, based on capital costs and operating and maintenance costs, is included. In all cases, no credit was given for the methane component of hydrogen.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Studies of the Use of High-Temp. Nucl. Heat from an HTGR for Hydrogen Production; 17 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    Hydrogen from coal (1975)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Hydrogen production from coal by hydrogasification is described. The process involves the solubilization of coal to form coal liquids, which are hydrogasified to produce synthetic pipeline gas; steam reforming this synthetic gas by a nuclear heat source produces hydrogen. A description is given of the hydrogen plant, its performance, and its effect on the environment.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Studies of the Use of High-Temp. Nucl. Heat from an HTGR for Hydrogen Production; 8 p
    Format: text
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    NASA TECHNICAL REPORTS
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